Delco radio ID ?????

[zieg85]

OK, I got my toy in the mail today...  I tried a number of times but always got out bid but not this time.  Does anyone have a link to ID this bad boy.  The only info I could find is up to 1975.  The service sticker is 70BPBT1.  I am guessing the (7) dates it a 1977 but I can't figure out the (0) not that it is that big of deal but inquiring minds want to know.  This radio is a NOS AM 8-track stereo.  Never installed supposedly.  This one is going in my extended cab for now.

[blazing816]

I just have to say that's BA to find a NOS 8-track. What I have found is that model comes from mid to later corvettes and Camaros. I found this website that you can buy the original manual for $22. Ill post the link, because I know Capt does not sell these, so should not be against the rules. Hope it helps and keeps us posted what you find, because you got me curious now.

https://www.samswebsite.com/en/photofact/search/index/model/70BPBT1

[zieg85]

Thanks, because it is pre-1978 the plugs are different.  The radio came with 2 of the 3 and the 3rd has been discontinued that specifically is for the rear speakers.  Now I have to find that plug before I can use it.  ARGGGGGGGH!!!  I thought it was a cool addition and very unique being an AM 8-track stereo.

[blazing816]

You got a picture of the back where the plugs are....be curious to see what it looks like.

[blazing816]

Search eBay for "ac delco radio plug" I found a bunch, don't know which style you need. Hope this helps, I am curious if you find the correct ones. Or if those are not it, if you post a pic of the plug area I might be able to have some made (I use to hook up car audio for many years and I know some people). Keep us posted

http://www.ebay.com/itm/AC-Delco-Stereo-Radio-Wiring-Plug-Plugs-Connectors-Harness-Chevy-Pickup-Camaro-/261212360213?pt=Motors_Car_Truck_Parts_Accessories&hash=item3cd1784e15&vxp=mtr

http://www.ebay.com/itm/1973-1974-1975-CHEVROLET-OLDSMOBILE-BUICK-PONTIAC-CADILLAC-DELCO-RADIO-PLUGS-/350707406876?pt=Vintage_Car_Truck_Parts_Accessories&hash=item51a7ca581c&vxp=mtr

http://www.ebay.com/itm/GM-CHEVROLET-CADILLAC-DELCO-STEREO-RADIO-WIRE-CONNECTOR-PLUGS-HARNESS-SMALL-PINS-/111022071676?pt=Vintage_Car_Truck_Parts_Accessories&hash=item19d96e5f7c&vxp=mtr

[zieg85]

Search eBay for "ac delco radio plug" I found a bunch, don't know which style you need. Hope this helps, I am curious if you find the correct ones. Or if those are not it, if you post a pic of the plug area I might be able to have some made (I use to hook up car audio for many years and I know some people). Keep us posted


http://www.ebay.com/itm/1973-1974-1975-CHEVROLET-OLDSMOBILE-BUICK-PONTIAC-CADILLAC-DELCO-RADIO-PLUGS-/350707406876?pt=Vintage_Car_Truck_Parts_Accessories&hash=item51a7ca581c&vxp=mtr

Is the plugs however if you click on the second picture of the 3 plugs, the middle and one on the right is correct and the ones I have, the one on the left needs to be 4 prong which has been discontinued, according to that very eBay seller...

[zieg85]

Here is a picture, the missing one is the one I need.  The actual plug may be a part of some other aspect or control other than the radio.  I am searching Craigslist "parting out 73-77 Chevy Camaro, and others" to start with.

[zieg85]

Found the plug I needed in my son's former boss's stash.  Now to determine which is the (+) and which is the (-) for the rear.   The dk blue and lt blue is the RR and the br and yellow is the LR.

[bd]

GM has remained fairly consistent through the years.

Left Rear:

• Yellow  (+)
  
  
• Brown  (-)

Right Rear:

• Light Blue  (+)
  
  
• Dark Blue  (-)

And, for comparison...

Left Front:

• Gray  (+)
  
  
• Tan  (-)

Right Front:

• Dark Green  (+)
  
  
• Light Green  (-)

[zieg85]

GM has remained fairly consistent through the years.

Left Rear:

• Yellow  (+)
  
  
• Brown  (-)

Right Rear:

• Light Blue  (+)
  
  
• Dark Blue  (-)

And, for comparison...

Left Front:

• Gray  (+)
  
  
• Tan  (-)

Right Front:

• Dark Green  (+)
  
  
• Light Green  (-)

Awesome, thank you!!!  Now can I assume the green is + and the black is - as far as the plug coming out of my radio for the front speakers?   I am thinking this is a front speaker mono plug.  The same plug on ebay compares but has different colors. 
My plug Green Green Black Black, the stereo one Gray Green Brown Black.
 This is a 1977 radio RPO UM1

[bd]

Awesome, thank you!!!  Now can I assume the green is + and the black is - as far as the plug coming out of my radio for the front speakers?   I am thinking this is a front speaker mono plug.  The same plug on ebay compares but has different colors.

My plug Green Green Black Black, the stereo one Gray Green Brown Black.
 This is a 1977 radio RPO UM1

I believe that in the combination Green/Green/Black/Black your assumption is correct.  Green is (+) and Black is (-).

[zieg85]

Thanks for confirming Rich, now I can solder up my conversion adapter and install it.  I need to run by Radio Shack for some solder a shrinkable tubing.